Better still, give us the sliding target distance scale in space that we have on the ground. Then if I only want to tab target through enemies within as close as 1km to as far as 30km I can set the slider to the default or whatever range I choose. For instance, if I'm using cannons and I know the optimal range is under 5km, I can set the slider to only target enemies within 5KM. After all I can still manually target those outside the range I set by clicking on them.